Mikado LOGO 500 DX, LOGO 500 3D, LOGO 600 DX, LOGO 600 3D User Manual

www.mikado-heli.de

LOGO 500 DX • LOGO 500 3D LOGO 600 DX • LOGO 600 3D

Manual

Mikado Modellhubschra uber • Friedrich-Kla using-Straße 2 • 14469 Potsdam • Germany ph one + 49 (0 )33 1 237 49- 0 • fax +49 ( 0)3 31 23 749 -11 • www. mik ado- hel i.d e

Manual The New Generation - ©Mikado Modellhubschrauber - Page 2

Speed-

controller

Index

OPERATING YOUR MODEL SAFELY

Operate the helicopter in spacious areas with no people nearby. !Warning: Do NOT operate the helicopter in the following places and situations (or else you risk severe accidents):

• in place s where chil dren gath er or people pass through

• in residential areas and parks

• indoors and in limited space

• in windy weather or when there is any rain, snow, fog or other precipitation

If you do not observe these instructions you may be held reliable for personal injury or property damage! Always check the R/C system prior to operating your helicopter. When the R/C system batteries get weaker, the operational range of the R/C system decreases. Note that you may lose control of your model when operating it under such conditions.

Keep in mind that other people around you might also be operating a R/C model.

Never use a frequency which someone else is using at the same time. Radio signals will be mixed and you will lose control of your model.

If the model shows irregular behavior, bring the model to a halt immediately. Turn off all power switches and disconnect the batteries. Investigate the reason and ﬁx

the problem. Do not operate the model again as long as the problem is not solved, as this may lead to further trouble and unforeseen accidents.

! Warning: In order to prevent accidents and personal injury, be sure to observe the following:

Before ﬂying the helicopter, ensure that all screws are tightened. A si ngle loose screw may cause a major accident. Replace all broken or defective parts with new ones, as damaged parts lead to crashes. Never approach a spinning rotor. Keep at least 10 meters/yards away from a spinning rotor blades. Do not touch the motor immediately after use. It may be hot enough to cause burns. Perform all necessary maintenance.

PRIOR TO ADJUSTING AND OPERATING YOUR MODEL, OBSERVE THE FOLLOWING

!Warning: Operate the helicopter only outdoors and out of people’s reach as the main rotor operates at high rpm! ! Warning: While adjusting, stand at least 10 meters/ yards away from the helicopter! Novice R/C helicopter pilots should always seek advice from experienced pilots to obtain hints with assembly and for pre-ﬂight adjustments. Note that a badly assembled or insufﬁciently adjusted helicopter is a safety hazard! In the beginning, novice R/C helicopter pilots should always be assisted by an experienced pilot and never ﬂy alone!

Tools for Assembly & R/C Equipment

Radio with Heli-Software

Receiver

Fast Charger

Motor + Speed Controller (check the Mikado

webpages for recommended motors)

Alle shown products are examples. You may use different brands.

BEC, replaces

receiver battery

Scissors

Rubber Hammer

Screwdrivers (plus and minus)

Hex Wrenches

1.5/2.0/2.5/3.0 mm

(.055/.079/.098/.118 in)

Ball

link

pliers

Threadlock

Ball link pliers

Grease

Pitch Gauge

Safety Instructions

Index . . . . . . . . . . . . . . . . . . . . . . . . . 2

Safety Instructions . . . . . . . . . . . . . . . . . . 2

Tools for Assembly & R/C Equipment . . . . . . . . 2

1 Mainframe . . . . . . . . . . . . . . . . . . . . . 3

2 Tail Rotor & Tail Boom 500/600 DX . . . . . . . . 4

3 Tail Rotor & Tail Boom 500 3D . . . . . . . . . . . 5

4 Tail Rotor & Tail Boom 600 3D . . . . . . . . . . . 6

5 Main Gear & Tail Rotor Assembly . . . . . . . . . 7

6 Swashplate . . . . . . . . . . . . . . . . . . . . 8

7 Radio . . . . . . . . . . . . . . . . . . . . . . . 9

8 Servo Installation . . . . . . . . . . . . . . . . 10

9 Rotor Head 500 DX/3D . . . . . . . . . . . . . 11

10 Rotor Head 600 DX/3D . . . . . . . . . . . . . 12

11 V-Bar Rotor Head 500 3D . . . . . . . . . . . 13

12 V-Bar Rotor Head 600 3D . . . . . . . . . . . 14

13 Rotor Head Assembly . . . . . . . . . . . . . 15

14 Mounting the Motor . . . . . . . . . . . . . . . 15

15 Radio and Battery . . . . . . . . . . . . . . . 16

16 Decal and Canopy Mounting . . . . . . . . . . 17

17 RC Programming . . . . . . . . . . . . . . . . 18

18 Rotor Blades . . . . . . . . . . . . . . . . . . 21

19 Pre-Flight Check . . . . . . . . . . . . . . . . 21

20 Operation During Flight . . . . . . . . . . . . 22

21 Upgrades . . . . . . . . . . . . . . . . . . . . 23

22 Overview Chassis . . . . . . . . . . . . . . . 24

23 Overview Tail Rotor LOGO 500/600 DX . . . . 25

24 Overview Tail Rotor LOGO 500 3D . . . . . . . 26

25 Overview Tail Rotor LOGO 600 3D . . . . . . . 27

26 Overview Rotor Head LOGO 500 . . . . . . . 28

27 Overview Rotor Head LOGO 600 . . . . . . . 29

28 Overview V-Bar Head LOGO 500 . . . . . . . 30

29 Overview V-Bar Head LOGO 600 . . . . . . . 31

V-Bar

Manual for Mikado helicopter models LOGO 500 DX, LOGO 500 3D, LOGO 600 DX and LOGO 600 3D

Manual The New Generation - ©Mikado Modellhubschrauber - Page 3

18x M2,5x10

4x M2,5x16

14x M2,5

4x M2,5 3x

SW5x59 1x M2,5x60

4x 3x7x3

2x 10x19x5

2x 3x17

4x 3x5x2,5

2x M2,5x8

2x M2,5

M2,5x8







10x19x5

M2,5x16 (4x)

3x7x3

3x17

Using the rod M2.5x60, position all 14 nylon nuts in the right side frame.

Before you combine the two sides of the main frame, attach the two be lt tensioners (#4089, bag 6).

You may install the four servos into the main frame either now or later. If you wish to install the servos now, please go to page 10, before you continue here.

1 Mainframe

Bag 1 • Bag 6 • Bag 10 • Bag 12

Bag 1

Bag 6

Bag 10

Bag 12

All parts shown in the boxes are displayed in real size.

Spacers for 25 mm tail boom (LOGO 600 3D).

Manual The New Generation - ©Mikado Modellhubschrauber - Page 4

2x M3x12

1x M3x14

2x M3x16

1x M3x20

2x M3x25

2x M3x30

1x 2x8

2x 5x10x0,1 2x 2x7 1x 3x4x10

1x M2x8 1x Kugel/ball Ø4,8x2

2x 3x5x2

5x M3 1x M3x3

4x M2,5x30

2x Kugel/ball Ø4,8x3

2x Kugel/ball Ø4,8x2,5

2x M3

2x 6x10x2,5

2x 5x10x4

4x 3x8x3

M3x3







M3x14

M2x8

3x4x10

6x10x2,5

2x8

5x10x0,1

2x7

M3x3

M3x16

M3x12

M3 Stopp

3x8x3

3x5x2

M3x30

M3 Stopp

M3x20

M3x25

M3 Stopp

5x10x4

LOGO 500DX: 1x LOGO 600 DX: 2x

4x M3x30



5 Min. Epoxy

2 Tail Rotor & Tail Boom 500/600 DX

Bag 5 • Bag 6 • Bag 9 • Bag 10 • Bag 11

Bag 9 (LOGO 500 DX)

Bag 9 (LOGO 600 DX)

Bag 6

Bag 5

Bag 10

Bag 12

Manual The New Generation - ©Mikado Modellhubschrauber - Page 5

1x M3x14

1x M3x20

2x M3x25

2x M3x30

1x 2x8

2x 5x10x0,1 1x M2x8

1x Ø4,8x2 2x 2x7

1x 3x5x5 1x M2x8 1x Ø4,8x2

1x 3x5x0,5

2x 5x8x0,5

2x M2,5x6

2x 2,5x6x0,5

2x 4x8x3

2x 4x8x2

2x M3x16

2x 4x8x3,5

5x M3 1x M3x3 1x 3x12

6x M2,5x30

2x Ø4,8x3

2x Ø4,8x2,5

2x M3 1x M2x6

1x M2

2x 6x10x2,5

2x 5x10x4

4x 3x6x2,5







2x8

5x10x0,1

2x7

M3x3

M3x14

M2x8

3x6x2,5

3x5x0,5

M3x30

M3 Stopp

M3x20

M3x25

5x10x4

M3x3

M3x16

4x8x3

4x8x2

5x8x0,5

M2,5x6

3x6x2,5

3x12

M3 Stopp

3x5x5

2,5x6x0,5

6x10x2,5

M2x6



5 Min. Epoxy

Countersunk screw M2x8

Bag 12 Bag 5

Bag 6

Bag 9

Bag 10

3 Tail Rotor & Tail Boom 500 3D

Bag 5 • Bag 6 • Bag 9 • Bag 10 • Bag 11

BagBag

Small diameter

Large diameter

Apply g rease to bearing

Manual The New Generation - ©Mikado Modellhubschrauber - Page 6

M2,5x30 (6x)

1x 2x8

2x 5x10x0,1 1x M2x8

1x Kugel/ball Ø4,8x2 2x 2x7

1x 3x5x5 1x M2x8 1x Kugel/ball Ø4,8x2

1x 3x5x0,5

2x 5x8x0,5

2x M2,5x6

2x 2,5x6x0,5

2x 4x8x3

2x 4x8x2

2x M3x16

2x 4x8x3,5

5x M3 1x M3x3 1x 3x12

2x M2,5x6

2x 3x5x10

2x 5x6x2

4x Kugel/ball Ø6x3

2x M2,5x30

2x M3 1x M2x6

1x M2

2x 6x10x2,5

2x 5x13x4

4x 3x6x2,5

1x M3x14

2x M3x8

2x M3x40

5x M3x35



2x7





M3x14

M2x8

3x6x2,5

3x5x0,5

3x5x5

2x8

5x10x0,1

M3x40

M3 Stopp (5x)

5x6x2

3x6x2,5

5x13x4

M2,5x6

M3x35 (5x)

M3x8

3x5x10

6x10x2,5

5 Min. Epoxy

M2x6



M3x3

M3x16

4x8x3

4x8x2

5x8x0,5

M2,5x6

M3 Stopp

2,5x6x0,5

M2,5x30 (6x)

5 Min. Epoxy

Countersunk screw M2x8

Ball Ø6 mm

4 Tail Rotor & Tail Boom 600 3D

Bag 5 • Bag 6 • Bag 9 • Bag 10 • Bag 11

Bag 12 Bag 5

Bag 6

Bag 9

Bag 10

Small diameter

Large diameter

Apply g rease to bearing

Ball Ø6 mm

Manual The New Generation - ©Mikado Modellhubschrauber - Page 7

LOGO 500

LOGO 600

4x M3

4x M3x8

1x 10x16x0,2

3x 10x16x0,5 1x 3x16 3x M4x5 (LOGO 500 DX)

1x M2,5x8 (LOGO 500 3D)

4x M3x10

2x M2,5x20











10x16x0,5

10x16x0,5 LOGO 500 DX/3D = 2x LOGO 600 3D = 1x

10x16x0,5

M3x8

(4x)

M3x10

M3 Stopp (4)

M2,5x20 M3x20

(LOGO 600 3D)

LOGO 500 3D LOGO 500 DX

use super glue to ﬁx position

Tighten tooth belt: Pull tail boom backwards and tighten srews

Grease autorotation hub

5 Main Gear & Tail Rotor Assembly

Bag 2 • Bag 8 • Bag 12

Bag 2

Bag 8

Bag 12

Manual The New Generation - ©Mikado Modellhubschrauber - Page 8

2x 2x8

2x 3x5x2,1

2x M3x14

2x 3x5x0,5 2x M2x8

2x Kugel/ball

4x 3x7x3

2x M2x8

2x Kugel/ball 4,8 2x 3 mm

4x 3 mm 2x 3x11 4x M2x10

4x Kugel/ball Ø4,8x7

500/600 DX 500/600 3D

(7x)

(4x)

6 Swashplate

Bag 3 • Bag 10

Bag 3

Bag 10

Bag 3

Manual The New Generation - ©Mikado Modellhubschrauber - Page 9

7 Radio

Futaba with Virtual Flybar

for Futaba G3 receiver check the V-bar manual

Rudder

Aileron right

Aileron left

Elevator

Throttle

V-Bar Mainboard

Air Speed Sensor

Bluetooth Modul

3-axis Gyro

CH3

CH2

CH1

CH2

CH1

CH6

CH4

Air Speed Sensor

Bluetooth Modul

3-axis Gyro

CH3

CH2

CH1

CH4

JR/Graupner with Virtual Flybar

CH3

CH2

CH1

Rudder

Aileron right

Aileron left

Elevator

Throttle

V-Bar Mainboard

Futaba/Hitec

JR/Graupner

CH2

CH3

CH4

CH5

CH1

CH3

CH1

CH2

CH4

CH5

Throttle

Rudder

Aileron

Nick

Pitch

Nick

Aileron

Pitch

Manual The New Generation - ©Mikado Modellhubschrauber - Page 10

12x 2,9x13 2x M2x14

4x M2,5x10

4x M2x10 1x M2x12

9x M2 3x M3x30

LOGO 500 3D & DX

LOGO 600 3D

M2x14

2,9x13 (4x)

45 mm

39 mm

15 mm

(4x)

2x 3x5x7 1x

M3x65

2x 3x5x1 1x M3x55

2,9x13 (4x)

M2,5x10 (4x)









8 Servo Installation

Bag 1 • Bag 9 • Bag 12

Bag 9 Bag 1

Bag 12

LOGO Rotor Head (with ﬂybar)

Apply a small amount of oil to the rotor shaft.

If you are installing Futaba servos, add the distance plate for the two aileron servos.

Aileron left Aileron right

Elevator

Rudder

LOGO Rotor Head (V-Stabi, ﬂybarless head)

Bag 1 LOGO 500 DX / 3D Bag 1 LOGO 600 3D

Use M2x14

16 mm 16 mm 16 mm 14 mm

20 mm 20 mm 20 mm 14 mm

Manual The New Generation - ©Mikado Modellhubschrauber - Page 11

8x M2x8

4x 4,8

2x 3x5x12 (LOGO 500 3D)

2x 3x5x16 (LOGO 500 DX)

4x 3x7x0,5 (LOGO 500 DX)

4x 3x7

2x 8x11x1 2x 2x30

2x 10x14x1

2x M4x12

2x 4x12x1 2x M2x3

4x 4x10x4 (LOGO 500 DX) 4x M2x10

4x M2 4x M3x3 2x M2x12

2x 4,8 2x 2x4,5x0,5

2x M4

4x 8x14x4

4x 3x7x3 (LOGO 500 3D)

2x 4x13x5

2x 4x10x4 (LOGO 500 3D)

2x 6x14x5

2x M3x25

2x M4x25







500 DX

500 3D

3x5x12

3x7x3

M2x8

M3x25

3x5x16

M2x8

M3x25

M4x25

M4x12

4x12x1

10x14x0,5

2x30

3x7

8x11x1

8x14x4

500 DX

500 3D

M2x3

4x13x5

M2x8

M2x10

2x4,5x0,5

M2x12

A=B

0° 0°

M3x3

3x7x0,5

LOGO 500 3D

M3x3

Large inner diameter

Small inner diamenter

Apply g rease to bearing

Less agility

More agility

9 Rotor Head 500 DX/3D

Bag 7 • Bag 10 • Bag 12

Bag 7

Bag 10

Bag 12

incorrect incorrect OK

4x10x4 ball bearing (LOGO 500 3D) 4x10x4 slide bearing (LOGO 500 DX)

Manual The New Generation - ©Mikado Modellhubschrauber - Page 12

10 Rotor Head 600 DX/3D

Bag 7 • Bag 10 • Bag 12

Bag 7

Bag 10

Bag 12

Manual The New Generation - ©Mikado Modellhubschrauber - Page 13

5x M3x8

6x 3x7

2x 8x11x1

4x 8x14x4

2x 6x14x5

2x 10x14x1

1x M3x10

2x M3x14

1x M3x20

2x M3x22

2x M4x12

2x M4x25

2x 4x12x1

1x M3

2x M4

2x Ø4,8x3

 





M3x8

M3 Stopp

M3x20

M3x22

M4x12

4x12x1

10x14x1

(5x)

41 mm

8x14x4

Bag 7

11 V-Bar Rotor Head 500 3D

Bag 7

Large inner diameter

Small inner diameter

Apply grease to bearing

Manual The New Generation - ©Mikado Modellhubschrauber - Page 14









5x M3x8

2x 8x11x0,5

4x 8x16x5

2x 8x16x5

6x 3x8

2x 11x16x1

1x M3x10

2x M3x14

1x M3x20

2x M4x25

3x M3

2x M4

2x Ø4,8x3

2x M3x35

2x M5x12

2x 5x15x1

M3 Stopp

M3x20

M3x10

M3x14

M3 Stopp

M3x20

M3x8

(5x)

8x11x0,5

3x8

M5x12

11x16x1

41 mm

8x16x5

Large inner diameter

Small inner

diameter

Apply grease to bearing

12 V-Bar Rotor Head 600 3D

Bag 7

2x M3x14

2x 3x9x1

1x M3x18

1x M3







Installation of the Motor Pinion

Screw the motor pinion onto the motor shaft, making sure that it can still be moved. Now mount the motor on the motor plate and move the pinion so it is aligned well with the main gear. As visual help for aligning the pinion you may use the small ridge which separates the two parts of the pinion. When the pinion is aligned correctly it will easily engage with the main gear. If the pinion does not engage with the main gear, it is not correctly aligned. After the pinion is correctly aligned, take the motor out of the mainframe and tighten the set screw.

Gear Backlash

Move the motor with the pinion until it is limited by the gear. Tighten one of the M3x14 screws slightly. You must still be able to swivel the motor around its own axis. In this way you can easily determine the correct distance between the main gear and the pinion. There should be no (!) gear backlash. At the same time, the motor should not (!) exert any pressure onto the running surface of the main gear. After you have determined the correct distance, tighten the second M2x14 screw.

Apply a small

amount of

grease to

the contact

surface

Antenna tube

speed

controller

14 Mounting the Motor

Bag 1 • Bag 12

13 Rotor Head Assembly

Bag 7 • Bag 12

Bag 7

Bag 12

Bag 1

Bag 12

available pinions

(not included in kit) 17 teeth #4117 18 teeth #4118 19 teeth #4119 20 teeth #4120 21 teeth #4121 22 teeth #4122 23 teeth #4123





 

4 5



15 Radio and Battery

Bag 1 • Bag 10

Battery:

Attach the battery with O-rings and Velcro.

Position of servo arms for the tail rotor when sticks are centered

Position of servo arms for the aileron servos

when sticks are centered (0 deg. Pitch)

Velcro

Rings (2x)

V-Bar Main board

Receiver

Position for mounting tail gyro

Position for mounting V-Bar gyro

Position of LiPo battery for the power supply of receiver.

2x 3x4x5

2x M3x8

2x 3x4x5

2x M3x8

Mounting the Decal onto the Canopy

Use a scissors to cut out the individual elements of the decal pattern. Make sure that you leave a small edge (1 to 2 mm) at the rim. Corners should be cut out with a small radius to avoid unwanted peeling off. Attach the individual elements of the pattern in the following way: Prepare a bowl of water with a small amount of dish washing detergent. Apply some of this water to a cloth or ﬁll up a squirt bottle with it. Using the cloth or squirt bottle, wet the surface of the canopy and the sticking surface of the decal element. Place the de cal on to the canopy. You can still move the decal at this point. When you have found the correct position, use a hair dryer to secure the pattern. Be careful not to hold the dryer to close to the decal, as it will shrink if too much heat is applied.

16 Decal and Canopy Mounting

Bag 1

Bag 7

shorten cap

17 RC Programming

120° Swashplate Mixing (120° CCPM)

The LOGO swashplate is designed to be controlled via electronic CCPM. Thus the corect control inputs of the three swashplate servos are automatically mixed by the R/C transmitter. If you have never programmed 120° CCPM before, please read this introductory text carefully.

Collective (Pitch)

Pitch function is used to control the lift or sink of the helicopter. When pitch input is given, all three swashplate servos travel together in the same direction and the same amount. As a result the swash-plate moves up or down on an even level.

Aileron (Roll)

Aileron (roll) is used to control the helicopter’s movements around its longitudinal axis. When aileron (roll) input is given, the two roll servos (in the front of the swashplate) travel in opposite directions. As a result the swash-plate tilts to the right or to the left.

Maximum PitchMinimum Pitch

Roll to the right Roll to the right (view from rear)

17 RC Programming

Elevator (Tilt)

For tilting the helicopter, use the elevator function. For tilting forward, the two aileron servos move downward and the backward elevator servo moves upward. The elevator servo moves twice as much as the two aileron servos.

Programming 120° CCPM

As the programming procedure varies with different types of R/C systems, it is necessary for you to refer to the instruction manual of your R/C system. Here are only a few general guidelines which apply to most systems.

Servo Centering with Sub-Trim Function

As indicated in the above sections on mounting the servos, it is important that the servo arms are exactly centered. You should use the servo sub-trim function of your R/C system for this purpose.

Activating 120° CCPM

Likely, the 120° CCPM function is initially disabled in your R/C transmitter software and needs to be separately activated. Please refer to your R/C system manual, where you will also ﬁnd information on which channels should be used for the elevator servo and the two roll servos. It is impor tant that you stick with the requirements stated in the manual. Otherwise the 120° CCPM will not function properly.

Your R/C may support various different CCPM mixings. For the LOGO choose the 120° mixing with two roll servos in the front and one elevator servo in the back.

Use the relevant menus for setting the mixing proportions for roll, elevator and pitch functions. Begin by setting the mix values to 50% each. Higher mix values give higher servo travel for that function This can have the unwanted result that the swashplate reaches its mechanical limits and causes damage to the servos or rods or to the swashplate.

If necessary, you may use the CCPM menu to reverse the direction of the function. This is necessary, for example, if the swashplate tilts to the wrong side or the pitch function is inverted. The menu for reversing servo functions can be used for reversing the movements of individual servo arms, but not for reversing the entire control function and of all the involved servos.

Elevator forward Elevator forward (view from side)

0°

17 RC Programming

Servo Travel

It may be the case that all swash-plate servos do not travel the same distance at maximum deﬂection. Even small differences between the 3 servos can prevent the swash-plate from being level during collective pitch inputs and cause the heli to drift.

In order to correct such servo travel differences, you must increase or decrease the servo travel setting accordingly. Use the menu ATV for adjusting the end points, if necessary. Do not get this menu mixed up with Dual/Rate. (Dual/Rate menu allows using multiple ser vo travel ranges and toggling between them during ﬂight.)

Example:

If during maximum pitch the elevator servo travel is slightly smaller than travel of the two aileron servos, then the swash-plate will be tilted backwards, causing the heli also to drift backwards. In this case you should increase the travel of the elevator servo.

Increase servo travel of

elevator servo on one side

All servos travel the same

distance at maximum deﬂection

Setting Pitch Values

Please choose from two different pitch settings, depending on your ﬂying style. The two settings are illustrated below. The standard range is for beginners and for pilots who will do some aerobatic ﬂight without extended periods of inverted ﬂight.

The ﬁnal pitch values must be tested during test ﬂying. Once set, the values will work with the rotor blades you used. In case you change over to a different set of rotor blades, the pitch values will have to be adjusted to the properties (size, proﬁle etc.) of the new set.

17 RC Programming

If you are an experienced pilot and plan on ﬂying inverted, select the 3D settings:

For setting the respective pitch values, please use a pitch gauge. The values for minimum and maximum can be speciﬁed in the menus of the transmitter.

Minimum Pitch Maximum Pitch0° - Pitch

Application Low Pitch Hovering (Stick Centered) High Pitch

Standard

– 3º 7º to 8º 11º to 12º

Application Low Pitch Stick Ce ntered High. Pitch

– 10º bis – 12º 0º 11º to 12º

Pitch Values

The center position of the sticks in your R/C radio corresponds to 0° pitch of the rotor blades. At 0° pitch, all levers (servo arms, washout lever, mixing arms) should be in horizontal position. At 0° pitch, the swashplate is in center position, allowing the same travel in upward (positive pitch) and downward (negative pitch) direction. This setting results in a linear pitch cur ve, which is ideal for 3D-style ﬂying. Pilots who wish to ﬂy with less negative pitch should reduce the pitch cur ve to approx. -3° pitch. Note that with this latter set-up the sticks are not at center position for hovering.

17 RC Programming

Aileron and Elevator Travel

The travel range of the aileron and elevator servos are limited by the swash-plate’s mechanical limits. Please take care that the swash-plate does not hit the maximum of its travel. This can have the unwanted result that the swashplate reaches its mechanical limits and causes damage to the servos or rods to the swash-plate itself. If you desire more agility for your helicopter, use lighter ﬂybar paddles.

Tail rotor settings

When the servo arm of the tail rotor servo is in the center, the tail rotor lever and the servo arm should be perpendicular with respect to each other. The tail rotor pitch lever should never reach its mechanical limits.

In case the servo travel is too large, you have the following options for correcting this:

1. Move the ball end of the tail rotor servo closer to the center of the servo arm.

2. Reduce the servo travel in your R/C system using ATV.

3. Reduce the servo travel in your gyro (not all gyros have this option).

In case the servo travel is too small, you have the following options for correcting this:

1. Move the ball end of the tail rotor servo further away from the center of the servo arm.

2. Increase the servo travel in your R/C system using ATV.

3. Increase the servo travel in your gyro (not all gyros have this option).

Ensure that the tail rotor servo tur ns in the correct direction. If necessary, reverse the direction of the tail rotor servo function in your R/C system.

Revo-Mix/Gyro

It is necessary to compensate for the torque created by the motor during ﬂight (but not during autorotation). This compensation is done by adjusting the tail rotor pitch. There are two options for achieving this:

1. Using normal gyro mode

Please refer to your R/C system manual for activating the revolution mixing function and for setting all parameters correctly. Final settings should be trimmed during test ﬂights.

Adjust the tail rotor linkage in length such that the tail rotor servo ar m and the tail rotor lever are at 90 with respect to each other. All parts serving the tail rotor movements must move smoothly. When there is too much resistance, the tail rotor will not react to subtle input and the gyro’s maximum sensitivity cannot be fully exploited.

17 RC Programming

2. Using a gyro in Heading-Hold mode

The Heading-Hold gyro mode compensates automatically the deviation caused by the motor torque. Therefore, if Heading-Hold mode is used, revo-mix should not be programmed additionally.

Important: Check to ensure that the tail rotor assembly moves smoothly and without play. Otherwise the gyro and servo will not compensate the torque properly.

Rotor Head RPM control

LOGO is designed to be ﬂown with constant rotor head speed. Irrespective of ﬂight attitude (ascending, descending, hovering), rotor speed should be kept roughly constant. There are two different methods for obtaining constant rotor speed:

Rotor speed control with speed controller

All speed controllers can be used in this mode. With speed controller it is necessary to program a throttle curve (see manual). Programming of throttle curve requires that you associate a given throttle value with a particular pitch value. In this way, the rotor speed is held almost constant with all pitch values.

Throttle curve programming depends on the type and quality of the R/C system. Simpler, inexpensive R/C systems designed for model helicopters usually have a 3-point throttle curve. High-end R/C systems typically have throttle curves with more conﬁgurable points (up to 9). Fine tuning of throttle curves will be necessary during test ﬂights.

Note that an incorrectly programmed throttle curve reduces performance and can lead to overheating of the motor and the speed controller.

Rotor speed control with governor (RPM regulation mode)

A speed controller with governor function keeps the rotor head speed constant, independent of ﬂight attitude (ascending, descending, hovering). It is not necessary to program a throttle curve. The head speed is simply controlled on the radio transmitter using a switch or lever. Important:

1) Governor mode must be activated in the speed controller ﬁrst (see manual of the speed controller)

2) In governor mode, the servo wire of the speed controller must not be connected to the throttle channel. Use a free channel in your radio to connect the servo wire.

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18 Rotor Blades

Carbon Rotor Blades

Rotor b lades made from glass- fiberenhanced plastic or carbon are typically in ready-to-ﬂy condition wh en new. It will only be necessary to adjust blade tracking.

Wooden Rotor Blades

Balancing of Rotor Blad es (Center of Gravity) Place each rotor blade over an edge as shown in picture (1). Adjust the blades so that they are in equilibrium. If the center of gravity is not in the same place in each blade, this needs to be corrected using tape. Apply as much tape as necessary until both blades show their center of gravity in the same place.

19 Pre-Flight Check

Prior to the ﬁrst ﬂight, you must re-check the direction of rotation of the main rotor head and the tail rotor!

Prior to the ﬁrst ﬂight the tracking of the rotor blades needs to be adjusted. If the tracking is not adjusted properly, this can cause vibrations and lead to instability of the helicopter. Apply colored tape to the tip of one of the rotor blades. Apply tape of a different color to the tip of the other rotor blade. When you are ready for your ﬁrst ﬂight, increase the rotor speed to just before lift-off. From a safe distance, check the rotor disk at eye-level. Very likely, one rotor blade will move below the other. Make a note of the color of the low-moving blade. Then turn off the motor and wait until the rotor head has come to a halt. Lengthen the linkage (1) of the rotor blade which was moving low by unscrewing the ball lin ks s omewhat. Rep eat the checking procedure until both rotor blades move on the same level.

Blade Tracking Adjustment

Direction of Main and Tail Rotation

Incorrect O.K.

Static balancing

Scr ew the roto r b lades tog ethe r a s shown in picture (2). The rotor blades are properly balanced when they are suspended exactly horizontally. If one of the rotorblades is not exactly horizontal, the blades are not in equilibrium.

This is corrected by applyin g tape to lighter blade.

When mounting the rotor blades to the blade holders, note the proper direction (clock wise rotation) . Tig hten the cap screws holding the rotor blades, so that the blades cannot move ea sily in the blade holders.

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20 Operation During Flight

Pitch/Throttle

You may want to program a different stick mode than the one shown. Please check which stick mode is used by other local pilots. Use the same one, so fellow pilots can assist you on the ﬁeld.

Impor tant: Flying a m odel helico pter requires many hours of training. During your ﬁrst attempts, while familiarizing yourself with the different control movements, keep the heli-copter low above the ground (just a few ce ntimete rs/a couple of inches.)

Rudder

20 Operation During Flight

Elevator

Aileron